Insurgent Sph - GBL /S Insurgent Sph - GBL /S Insurgent Sph - GBL /S Insurgent Sph - GBL /S

Insurgent Spherical Helmet

Item No. 34699-255-XS/S
£ 349.99
Color — Matte Black
Size Size Chart

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The Giro Insurgent™ Spherical delivers the protection and comfort that top gravity riders from Rampage to EWS demand, with the ball-and-socket design of Spherical Technology™ paired with best-in-class cooling power.
From the Enduro World Series to Red Bull Rampage, top riders demand the Giro Insurgent™ Spherical and the confidence it delivers. Our engineers maximized the intake points for cool, fresh air, resulting in cooling power 50% more efficient than the Disciple™ Mips®. A lightweight, soft-touch, and absorbent pad set includes two different cheek pads with each of the three sizes, allowing for a customizable fit, which are secured via a directional snap system allowing for easy removal in case of a crash. At 1,040 grams in size M/L, the Insurgent is 200 grams lighter than the Disciple Mips despite additional features including the advanced protection performance of Spherical Technology™. Insurgent Spherical utilizes a pair of different density EPP and EPS foam layers that work like a ball and socket to redirect impact energy in a crash. Additional features include a patent-pending Flex Gasket along the lower edge of the helmet, designed to reduce the role a helmet can play in certain collarbone impacts, tool-free breakaway visor bolts with integrated Allen key receiver for easy removal, and a central visor bolt hole, which does double-duty as the ideal mount for P.O.V. action cameras.
  • SPHERICAL TECHNOLOGY, POWERED BY MIPS® — Spherical Technology's ball-and-socket design, powered by Mips®, helps redirect impact forces away from the brain by allowing the outer liner to rotate around the inner liner during a crash. It also eliminates contact with hard plastic or slip-planes against the skin.
  • OPTIMIZED FRONT INTAKE VENTS — Giro engineers designed precise placement and shape of intake vents to optimize cool air flowing over riders' heads.
  • MAXIMIZED REAR EXHAUST VENTS — Our complex Wind Tunnel venting system allows hot air an easy escape route from the rear of the helmet.
  • BREAKAWAY VISOR BOLTS — Tool-free breakaway visor bolts are engineered with an integrated Allen key receiver for easy removal and replacement in case of crash.
  • DIRECTIONAL SNAP SYSTEM — In case of emergency, cheek pads are easily removable without disturbing the rider's head and neck position.
  • PATENT-PENDING FLEX GASKET — The zone along the lower edge of the helmet is designed to allow some flex, reducing the role a helmet can play in certain collarbone impacts.
  • STEALTH CAMERA MOUNT — The central visor bolt hole does double duty as an ideal location for mounting P.O.V. action cameras.
  • ROC LOC® AIR DH FIT SYSTEM — This revolutionary fit system adds a new dimension to helmet performance by enhancing cooling, as well as fit comfort and stability. Using a patented design that suspends the helmet just slightly off the top of the skull, Roc Loc Air DH allows cool airflow to pass directly over your head, further enhancing the performance of vents and internal channeling that exhaust heat out of the helmet. Fit and feel adjustments mimic the Roc Loc 5, allowing you to easily custom tune fit tension and fore-aft tilt of the helmet in seconds using a single hand.
  • IONIC+® PADDING — Pure Silver is the secret ingredient that gives IONIC+® the power to provide natural, permanent odor protection to keep your helmet feeling fresh.
  • CE EN 1078
  • 1040 gr. (size M/L)
40% Fiberglass Shell, 13% Nylon, 10% PVC, 12% EPS, 8% EPP, 12% PU, 2% Metal, 3% Polyester

Size Charts

These size charts and conversions are meant to serve as a guide. We recommend you try-on before riding to ensure full comfort and performance.


Bike Helmet Size Guide

How to measure your size – Wrap a measuring tape around your head, keeping the tape level from front to back. Note the measurement and reference the Size Guide. Note: Make sure the helmet fits with a little room when the fit system is loose, and sits low enough to protect your forehead without hindering your vision. Once you’ve got the right size, you can adjust the fit.

Bike Helmet Sizing
Adult Size Circumference
S 52 - 55.5 cm
M 55.5 - 59 cm
L 59 - 62.5 cm
XL 62.5 - 65 cm
Youth Size Circumference
XS 48.5 - 52 cm
S 52 - 55.5 cm
M 55.5 - 59 cm
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